OREGON STATE UNIVERSITY

Compound Volcano

Atka

Latitude (dd): 
52.38
Longitude (dd): 
-174.15
Elevation (m): 
1533
Country: 
USA
State (Province, etc): 
Aleutian Islands
Type: 
Caldera



Atka

The 200 cu km Atka volcano is the largest volcanic center in the central Aleutians. A central shield volcano and caldera is ringed by 7 or 8 satellitic volcanoes.

This view, from near Atka village, shows 1533-m-high Korovin volcano, the highest and northernmost of three Holocene stratovolcanoes of the Atka volcanic complex.

Korovin has been the most active during historical time, but Sarichef and Kliuchef volcanoes may also have had historical eruptions.

Photo by James Dickson, 1986 (courtesy of John Reeder, Alaska Div. Geology Geophysical Surveys).